Published November 13, 1986 | Version v1
Journal article Metadata-only

Antiproton annihilations in deuterium at rest into two pions: Evidence for anti pN bound states near threshold

Creators

  • 1. Syracuse Univ., NY (USA)
  • 2. Brookhaven National Lab., Upton, NY (USA)
  • 3. Case Western Reserve Univ., Cleveland, OH (USA)
  • 4. Maryland Univ., College Park (USA)
  • 5. Columbia Univ., New York (USA)

Description

The charged pion spectra in anti pd→π-π0ps, π-π+ns have been measured. The Doppler broadening of the pion momentum due to the spectator neutron recoil is at least a factor of two larger than that due to the proton and in disagreement with that expected from the deuteron wave function. This effect and earlier observations on spectators are well described by assuming narrow anti NN bound states near threshold. (orig.)

Additional details

Publishing Information

Journal Title
Phys. Lett., B
Journal Volume
180
Journal Issue
3
Series
Phys. Lett., B.
Journal Page Range
313-318
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
18017299
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANNIHILATION; ANTIPROTON REACTIONS; ANTIPROTON-NEUTRON INTERACTION; BARYONIUM; BINDING ENERGY; BOUND STATE; DEUTERIUM TARGET; ENERGY SPECTRA; EXPERIMENTAL DATA; HADRONIC PARTICLE DECAY; NEUTRONS; PAIR PRODUCTION; PARTICLE WIDTHS; PIONS MINUS; PIONS NEUTRAL; PIONS PLUS; PROTON-ANTIPROTON INTERACTIONS; PROTONS; QUASI-FREE REACTIONS
Descriptors DEC
ANTIMATTER; ANTIMESONS; ANTINUCLEON REACTIONS; ANTIPARTICLES; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; DIRECT REACTIONS; ELEMENTARY PARTICLES; ENERGY; FERMIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; MATTER; MESON RESONANCES; MESONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEON-ANTINUCLEON INTERACTIO; NUCLEONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; RESONANCE PARTICLES; SPECTRA; TARGETS